hathaway



G. M. HA-THAWAY. Permutation Padlock.

Patented Mar. 30, 1880.

NPEIERS, PROTD-LIT'HDGRAPHER, WASHWGTON, D C.

GEORGE M. HATHA'WAY, OF ELMIRA,

PATENT NEYV YORK, ASSIGNOR OF ONEHALF OF HIS RIGHT TO CLAY M. NEWGOMB,OF SAME PLACE.

PERMU'ILATION-PADLOCK.

SPECIFICATION forming part of Letters Patent No. 226,069, dated March30, 1880.

Application filed November 28, 1879.

To all whom it may concern:

Be it known that I, GEORGE M. HATHAWAY, of Elmira, in the county ofGhemung, and in the State of New York, have-invented certain new anduseful Improvements in Combination- Locks; and I do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangementof a combination-padlock, as will be hereinafter more fully set forth.

In the annexed drawings, Figure 1 is a side view of my padlock open.Fig. 2 is an enlarged vertical section with the hasp in place. Fig. 3 isa similar view of the lock-case without the hasp. Fig. 4 shows the dialon the outside. Fig. 5 shows the inside of the dial. Fig. 6 is aperspective view of the end of the hasp. Fig. 7 is a perspective view ofone of the tumblers. Fig. 8 shows the under side of the bottom tumbler.

A represents the lock-case, made in cylindrical form, open at both ends,and provided with a side arm, B, to which the hasp G is hinged in anysuitable manner. The end of the hasp 0 forms the part D, which is madeslightly tapering in form and provided with three circumferentialgrooves, a, more or less, leaving a series of flanges, I), each of whichhas a notch, 00, through it, as shown in Fig. 6. 3 5 E is the dial,graduated from 1 to 25, and provided with a knob, F, for turning thesame. The dial is on its inner side provided with a circular projection,(l, which is shouldered, as shown at e, and fits in the opening in thebottom of the lock-case, while the body of the dial bears against thelower end of the case.

G is the bottom tumbler, which is made in cup form and swiveled to thedial by means of a screw, f, from the inside. This tumbler is in thebottom provided with a series of notches, i, into one of which takes aprojecting tooth, h, on the shoulder e of the dial-projection d,s1 i

that by turning the dial the tumbler Gr also be turned G is the nexttumbler, and G the top one, both made in ring form and fittingin thelockcase. The adjoining edges of the three tumblers are groovedannularly-that is to say, the top edge of the tumbler G has an annulargroove, while both edges of the tumbler G and the 5 5 bottom edge of thetumbler G are similarly grooved. In each of these grooves is inserted apin, m, which projects into the groove on the adjacent tumbler.

All the tumblers have a horizontal pin, a, projecting inward, as shownin Fig. 2; and the two upper tumblers have each a spring, 19, insertedin a recess in the outer side to bear against the inner face of thelock-case, so as to create suflicient friction to prevent the tumblersfrom getting out of position while setting the lock.

G is a cap screwed on the upper end of the lock-case, and provided withan opening to admit the part D of the hasp, the cap holding the tumblersin place. On the end of the hasp G, where the part D projects, is ashoulder with packing-ring s, to bear against the cap and prevent theingress of dust and moisture. I

When the tumblers are turned in the usual manner for combination-locks,according to a certain combination-say, for instance, 6, 211}, 1--thetumblers will be left with their pins win a line with each other, andwith the notches 00 in lock-bolt flanges b, and the lock can be opened.I

The tumblers must be placed in the same position to close the lock, andthey are then turned so that the pins n enter the grooves a, on the partD of the hasp. By now turning the cap G slightly backward to bearagainst the shoulder and ring 5, it will bind the interior partstogether, so that the dial cannot be turned, thus locking thecombination or forming a double lock.

The combination can easily be changed by simply changing the position ofone or more of the pins m n, or by changing the tooth h in a differentnotch, 6.

My combination-lock is a night-lock-that is, 5 a lock that can be openedby night as well as by day by any one having the proper combination.

It will be noticed that the graduation-marks on the dial are in the formof radial grooves or indentations, as shown particularly at y in Fig. 2,and a spring, I, is attached to the arm B, and provided with a suitableflange or projection to take into said groove. Furthermore,

the graduating-marks are so arranged on the dial that a wide smoothspace, 2, is left thereon between the figures 25 and 1, so that even atnighttime a person can tell when and where to commence counting. Then asthe dial is turned the operator can tell by the click of the spring Ievery time a graduation is passed.

Instead of radial grooves, raised letters, figures, or characters may beused and answer the same purpose.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination of the series of cup and ring shaped tumblers G G Gthe horizontal pins n, and the part D of the hasp, havingcircumferential grooves a and flanges b, with notches 00, substantiallyas and for the purposes herein set forth.

2. The combination of the lock-case A, with tumblers therein, hasp G,with part D, with shoulder and packing-ring s, and the movable screw-capG, as and for the purposes herein set forth.

3. The combination of the series of cup and ring shaped tumblers G Gr Ghaving horizontal pins n, the dial F, having on its face a series ofradial depressed graduation-marks, y, and smooth space 2, the spring I,and the part D of the hasp, having grooves a and notched flanges. b, allconstructed substantially as and for the purposes herein set forth.

In testimony that Iclaim the foregoing I have hereunto set my hand this26th day of 40 November, 1879.

GEORGE M. HATHAVVAY.

Witnesses H. AUBREY ToULMIN, J. J. MCCARTHY.

